Chinese quality watchdog on Thursday put into effect a regulation which means only those that have registered with the Chinese authorities can sell diary products into the country.

Overseas diary producers must meet Chinese rules and standards on sanitary conditions and get approval from authorities to sell diary products, according to the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ).

The first batch of registered overseas diary producers involve 1,122 companies, including 41 makers on baby formula.

More companies will be publicized after their registration, according to the AQSIQ.